Thermoluminescence properties of high-dose gamma-irradiated diamond films

E. Cruz-Zaragoza*, J. Marcazzó, E. Pérez Ramírez, R. Meléndrez, M. Barboza-Flores

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Thermoluminescence (TL) properties of gamma-irradiated chemical vapor deposition (CVD) diamond films at high doses are presented. Samples of undoped and nitrogen-doped CVD diamonds were exposed to 60Co gamma sources and TL intensity as a function of the dose was analyzed. To evaluate the feasibility of using these materials as TL high-dose dosimeters, reproducibility of the TL signal, and the TL response as a function of absorbed dose from 100 Gy up to 10 kGy were studied. Furthermore, the fading of the TL glow curve was analyzed. Finally, to estimate the kinetics parameter values associated with the trap distribution in the CVD diamond, a computerized deconvolution was carried out by using the general order kinetics (GOK) model.

Original languageEnglish
Article number012052
JournalJournal of Physics: Conference Series
Volume1723
Issue number1
DOIs
StatePublished - 18 Mar 2021
Event10th International Congress of Physics Engineering, CIIF 2020 - Mexico City, Mexico
Duration: 28 Sep 202030 Sep 2020

Bibliographical note

Funding Information:
The authors would like to thank Prof. Matthias Schreck, Institut für Physik Universität Augsburg, for providing the CVD diamond films. This work was supported by PAPIIT-DGAPA-UNAM through the IG101119 group project. Thanks are due to Ivan Puente Lee, USAI-Facultad de Química-UNAM, for his valuable help to analyze by SEM-EDS samples. Thanks to Benjamin Leal, Javier Gutiérrez, and Francisco García (ICN-UNAM), for the irradiation samples.

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

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